Your JavaScript appears to be disabled. JavaScript is necessary for various functions,
such as order checkout, to operate on this web site. Please ensure that JavaScript is enabled.

Outdated Internet Browser Detected

Your web browser appears to be out of date.
Soon you will not be able to create a secure connection to our web site using TLS 1.0.
Please upgrade your browser from current version( ).
Learn more about TLS.

Yoshimura Street Series R-77 mufflers are developed with superbike technology and styling. Their distinctive trapezoidal design allows for a large volume of packing material and, in turn, delivers top performance. The carbon cone end cap is riveted, using high-end 304-L polished stainless steel rivets and bands—while the sleeve is carbon fiber black or polished stainless, with a large volume of packing material and a straight baffle for ample flow.